Reversing mechanism.



No. 688,123. y Patented Dec.' 3, |90l.

F. C. RICE.

REVERSING MEGHANISM.

' (Application mea Feb. 26, 1901.)

(No Model.)

l y www UNITnD STATES .PATENT OFFICE.

FRANK CLARENCE RICE, OF JAMESTOWN, NEW YORK, ASSIG'NOR TO GEORGE V.BLACKSTONE, OF JAMESTOWN, NEW YORK.

REVERSING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 688,123, dated December3, 190i Application filed February 26, 1901. Serial No. 48,952. (Nomodel.)

To all whom it may concern:

Beit known that I, FRANK CLARENCE RICE, a citizen of the United States,and a resident of Jamestown, in the county of Chautauqua and State ofNew York, have invented a new and Improved Reversing Mechanism,of whichthe following is a full, clear, and exact description.

The invention relates to reversing m echanism such as shown anddescribed in the Letters Patent of the United States No. 633,783,granted to George V. Blackstone on September 26, 1899.

The object of the present invention is to provide a new and improvedreversing mechanism for use on washing-machines, churns, and othermachines and devices to rotate the dasher or other part alternately inopposite directions and arranged to reduce friction to a minimum and toallow of running the machine with comparatively little power.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement as applied toawashing-machine. Fig. 2 is an enlarged plan view of part of theimprovement. Fig. 3 is a perspective view of the same. Fig. 4t is a planview'of one of the loose gear-wheels. Fig. 5 is a sectional sideelevation of a modified form of driving gearwheel, and Fig. 6 is a faceview of the same.

The washing-machine on which the improvement is applied is provided witha suitable box A, in which is mounted to revolve a dasher B, mounted toslide on and to turn' with a dasher-shaft C, journaled in suitablebearings arranged in a bracket D, secured to the cover or lid E of thebox A. In the bracket D is journaled, at a right angle to the shaft C, adriving-shaft F, having a suitable crank-arm F', under the control ofthe operator,for turning the shaft F in either direction.

On the inner end of the shaft F is secured a bevel-pinion G, in mesh atopposite sides with bevel gear-wheels H H', mounted to rotate loosely onthe shaft C. On the latter is secured a locking device consisting of amember I, secured to said shaft C and carrying a bolt I', on which ismounted to slide vertically a movable member I2, carrying at its upperand lower ends friction-rollers I3 I4, adapted to be engaged by aprojection in the form of a cam J, held on the face of the pinion G andarranged in such a manner that when the pinion G is turned and the twogearwheels H and H' are rotated then the cam alternately moves inengagement with the friction-rollers I3 I4 to impart an up-and-downsliding motion to the member I2 to engage the friction-rollers I3 Itlwith recesses H2 H3, formed in the webs of the gear-wheels H H',respectively. The said friction-rollers I3 I4 are also adapted to travelon cam-surfaces H4, formed on the webs of the bevel gear-Wheels H H' andleading from the recesses H2 H3, so that when the cam J has engaged,say,the friction-roller IB and moved the member I2 in an upward directionthen the other frictionroller I1 in moving out of its recess H2 isbrought to the cam-surface H4 to push the slidable member I2 into afinal uppermost position on a further rotation of the pinion G and thegear-wheels H H'. In a similar manner the friction-roller I3 engages thecam-surface H4 on the under side of the web of the gear-wheel H' at thetime the cam J acts on the friction-roller I4 and pushes the member I2in a downward direction.

From the foregoing it will be seen that by having the friction-rollersI3 I4 traveling on the cam J the incident friction is reduced to aminimum,and consequentlyit requirescomparatively little power on thepart of the operator to rotate the shaft F. It will further be seen thatby having the cam-surfaces H4 the movable member I2 is thrown far enoughduring each stroke to insure a positive engagement of the correspondingfriction-roller l3 or I4 with the recess H2 or H3 in the gearwheels H H.v In order to still further decrease the friction, the projection on camJ is preferably made in the form of a friction-roller J', journaled on astud J 2, secured to the driving-pinion G eccentrically to the shaft F,so that the IOO friction-rollers l Ii travel With their peripheralsurfaces on the peripheral surface of the friction-roller J,When thelatter alternately engages the said friction-rollers upon rotating thepinion G, as above described.

It is evident from the foregoing that when the shaft F is rot-ated inone direction the shaft C and the dasher B are alternately revolved inopposite directions, the gearing being so proportioned that it requiresone and one-half revolutions of the pinion G to give one full turn tothe gear-wheels H H', and consequently after another one and one-halfturn of the pinion G the cam or friction-roller J stands in an oppositeposition to that which it had upon the previous shifting of the movable,member I2 of the locking device, and as the gear-wheels H H nowhave-each made a full revolution the corresponding recesses are directlyor nearly opposite each other, and the shifting ofthe movable member I2can now take place to move the friction-rollers I3 or I4 out of meshwith the corresponding recess and` in mesh with the'recess in the othergearwheel H or H.

Havingthus fully described my invention, I claiml as neviT and desire tosecure by Letters Patent* 1. A reversing mechanism, comprising adriving-pinion, a projection on said pinion, gear-.wheels in mesh withsaid pinion at opposite sides thereof, anda locking device on the shaftto be driven and having a fixed member secured to the shaft anda lockingmember mounted to slide on the Xed member, and antifriction-rollers onthe ends of said movable member, and adapted to be engaged by saidprojection-on the pinion, to throwthe movable locking member alternatelyinto engagement with` lthe said gear-wheels, as set forth.

2. Areversing mechanism comprising bevel gear-wheels having shouldersand inclines, a

' driving-pinion, for-driving said gear-Wheelsin opposite directions, alocking member adapted to be shifted, to alternately engage theshoulgear-Wheels having shoulders and inclines, a driving-pinion,fordriving said gear-Wheelsin v opposite directions,a lookin g memberadapted to be shifted, to alternately engage the shoulders and inclinesof the gear-Wheels, means moving with said pinion for shifting saidlocking member, and antifriction-rollers at the ends of 'said lockingmember, to engage the shoulders and inclines of the gear-wheelsalternately upon shifting the member, as set forth.

4. A reversing mechanism, comprising a drivingpinion,a stu'd projectingfrom the free end of the drivin g-pinion eccentric to the shaft of thepinion a friction-roller journaled on the said stud, gear-wheels in meshWith the driving-pinion at opposite sides thereof, and a 'locking deviceon the shaft to be driven and having a movable locking member adapted toengage said friction-roller and throw the locking member alternatelyinto engagement with saidgear-Wheels, as set forth.

5. A reversing mechanism, comprising a driving-pinion, a frictionrollerjournaledV on the free end of said pinion, gear-Wheels in mesh with thedriving-pinion at opposite sides thereof, the said gear-Wheels havingrecesses formed in their Webs and cam-surfaces leading from the recessesa locking device on the shaft to be driven and having a movablelockingmember, and friction-rollers journaled on the locking member and adaptedto engage the said friction-roller and throw the locking memberalternatelyT into engagement with said recesses in the gear-Wheels, asset forth.

6. A reversing mechanism, comprising a driving-pinion, a projection onsaid pinion,

gear-Wheels in mesh with said pinion at opposite sides thereof, thesaidgear-Wheels having recesses in their Webs and cam-surfaces l leadingfrom the recesses, and a lockingmember adapted to be engaged and shiftedby the said projection on the pinion to alternately engage the recessesin the gear-Wheels, the said locking device when moving out of therecess of one gear-Wheel engaging the camsurface of said gear-Wheel, forthe purposeset forth.

In testimony whereof I have signed my name to this specification inthepresence of two subscribing. witnesses.

FRANK CLARENCE RICE.

Witnesses:

JOHN P. MOYNIHAN, ANDREW J. LIND.

IOO

